
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ABS/ESP SYSTEM
KYRON SM - 2005.09
31
4890
BRAKE
A / BAG
A/T
M/T
CLUTCH
AXLE
SP
ST’NG
A / CON
T/C
12. HYDRAULIC CIRCUIT OF HBA (HYDRAULIC BRAKE ASSIST)
The above figure shows one front and one rear wheel and the same hydraulic circuit forms as in the ESP operation.
When HECU recognizes that it is an emergency and it is required for hard braking, depending on the pressure value
of the brake pressure sensor and pressure changes caused by the pressure sensor timing, it operates the pump
immediately to apply the brake pressure at the wheels. Then, the pressure in the pump increases until just before
the corresponding wheel gets locked. The motor still keeps rotating and the outlet valve and the separation valve are
will stay closed.
When the wheel starts to lock, the HBA function cancels and switches to ABS operation.
Low
pressure
chamber
Pump
Shuttle
valve
Separation valve
Inlet
valve
Outlet
valve
Inlet
valve
Outlet
valve
Rear wheel
Front wheel
Summary of Contents for KYRON 2006
Page 2: ......
Page 12: ...MEMO ...
Page 126: ......
Page 196: ...MEMO ...
Page 248: ...MEMO ...
Page 250: ......
Page 272: ......
Page 304: ...MEMO ...
Page 322: ...SUSPENSION KYRON SM 2005 09 CHANGED BY EFFECTIVE DATE AFFECTED VIN 18 4510 MEMO ...
Page 354: ......
Page 386: ...MEMO ...
Page 462: ......
Page 586: ......
Page 656: ...MEMO ...
Page 658: ......
Page 774: ...SWITCHES ELECTRICDEVICES KYRON SM 2005 09 CHANGED BY EFFECTIVE DATE AFFECTED VIN 80 8510 ...
Page 836: ...MEMO ...
Page 860: ...MEMO ...
Page 966: ...MEMO ...
Page 968: ......
Page 994: ...MEMO ...
Page 1060: ...MEMO ...
Page 1083: ...24 BODYREPAIR KYRON SM 2005 09 CHANGED BY EFFECTIVE DATE AFFECTED VIN 5110 Unit mm Front End ...
Page 1085: ...26 BODYREPAIR KYRON SM 2005 09 CHANGED BY EFFECTIVE DATE AFFECTED VIN 5110 Tailgate Unit mm ...